diff --git a/1732845832_create_table_customer_service_type.up.sql b/1732845832_create_table_customer_service_type.up.sql
index e96576c..a58f6df 100644
--- a/1732845832_create_table_customer_service_type.up.sql
+++ b/1732845832_create_table_customer_service_type.up.sql
@@ -1,6 +1,6 @@
 CREATE TABLE `ufutx_customer_service_type` (
     `id` bigint(20) UNSIGNED PRIMARY KEY NOT NULL AUTO_INCREMENT,
     `name` varchar(100) NOT NULL ,
-    `created_at` timestamp NOT NULL,
-    `updated_at` timestamp NOT NULL
+    `created_at` timestamp default NULL,
+    `updated_at` timestamp default NULL
 )
\ No newline at end of file
diff --git a/1732846388_create_table_customer_service.up.sql b/1732846388_create_table_customer_service.up.sql
index 9cccd10..6f408de 100644
--- a/1732846388_create_table_customer_service.up.sql
+++ b/1732846388_create_table_customer_service.up.sql
@@ -3,6 +3,6 @@ CREATE TABLE `ufutx_customer_service` (
     `type_id` bigint(20) UNSIGNED NOT NULL comment "客服类型id", 
     `type_name` varchar(100) NOT NULL comment "客服类型",
     `user_id` bigint(20) UNSIGNED NOT NULL comment "用户id",
-    `created_at` timestamp NOT NULL,
-    `updated_at` timestamp NOT NULL
+    `created_at` timestamp default null,
+    `updated_at` timestamp default NULL
 )
\ No newline at end of file